Successfully complete the indicated task to unlock the corresponding character class:

Archer: Have a Level 15 Warrior or Valkyrie and Level 15 Priest or Cleric. Additionally, one of your units must have reached Level 5 Weapon Mastery with a Bow. Alternately, unlock at the start of Episode 5.

Armor Knight: Have a Level 20 Warrior or Valkyrie. Additionally, one of your units must have reached Level 7 Weapon Mastery with a Spear. Alternately, unlock at the start of Episode 10.

Beast Master: Have a Level 30 Warrior or Valkyrie, and have used a Mounted Skill at some point.